// Copyright 2022 iLogtail Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package common

import (
	"encoding/json"
	"log"
	"os"
	"path/filepath"
)

func ReadJSON(path string, ptr interface{}) error {
	file, openErr := os.Open(filepath.Clean(path))
	if openErr != nil {
		return openErr
	}
	defer func() {
		if closeErr := file.Close(); closeErr != nil {
			log.Println("Error closing file: " + closeErr.Error())
		}
	}()

	decoder := json.NewDecoder(file)
	decoderErr := decoder.Decode(&ptr)
	if decoderErr != nil {
		return decoderErr
	}
	return nil
}

func WriteJSON(path string, data interface{}) error {
	dataString, marshalErr := json.Marshal(data)
	if marshalErr != nil {
		return marshalErr
	}

	file, openErr := os.OpenFile(filepath.Clean(path), os.O_RDWR|os.O_TRUNC, os.ModeAppend)
	if openErr != nil {
		return openErr
	}

	_, writeErr := file.WriteString(string(dataString))
	if writeErr != nil {
		return writeErr
	}
	defer func() {
		if closeErr := file.Close(); closeErr != nil {
			log.Println("Error closing file: " + closeErr.Error())
		}
	}()
	return nil
}
